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    • 59. 发明申请
    • Check valve assembly for sprinkler head
    • 止回阀总成用于喷头
    • US20060086832A1
    • 2006-04-27
    • US10973546
    • 2004-10-26
    • James Roberts
    • James Roberts
    • B05B1/30
    • B05B3/06B05B1/3013B05B3/04Y10T137/1789
    • A check valve assembly has a coupling sleeve with a first end for connection to a pop-up or fixed sprinkler head and a second end for connection to a water supply, the coupling sleeve incorporating a valve seat. A disc valve is retained below the valve seat, and a separate actuator is movably mounted above the seat for movement between an operative position extending through the valve seat to hold the valve in the open position, and an inoperative, retracted position. The disc valve is retained against the valve seat around its peripheral edge, and has a central portion which is moved by the actuator into the open position when the sprinkler head is properly connected to the coupling sleeve. Release or removal of the actuator as a result of removal of the sprinkler head will allow fluid pressure at the second end of the coupling sleeve to urge the valve into the closed position.
    • 止回阀组件具有联接套筒,其具有用于连接到弹出或固定的喷洒头的第一端和用于连接到供水的第二端,所述联接套筒包括阀座。 盘阀被保持在阀座下方,并且单独的致动器可移动地安装在座椅上方,用于在延伸穿过阀座的操作位置之间移动以将阀保持在打开位置,并且处于不工作的缩回位置。 盘阀围绕其周边边缘保持抵靠阀座,并且具有当喷洒头适当地连接到联接套筒时由致动器移动到打开位置的中心部分。 由于去除喷头而释放或移除致动器将允许联接套筒第二端处的流体压力促使阀进入关闭位置。